This makes demos render correctly on hiDPI displays,
while also demonstrating how to handle multiple resolutions.
The 3D in 2D demo now uses "3D No-Effects" for the 3D viewport,
which is faster to render. Thanks to this, 4× MSAA is now enabled
for a better result.
The background loading demo now uses mipmaps for better-looking images.
The material testers demo now samples mouse input in a
resolution-independent manner when panning.
Default clear colors were also changed in some projects for visual
consistency with the project's theme.
Importing ETC2 textures is slow and requires a lot of RAM, so it
makes sense to disable it. Those who would like to run the demo
on mobile platforms can re-enable it in the Project Settings.
Noticed a lot of error spat out because of unnormalized basis.
I simply followed the suggestion to use get_rotation_quat() instead of using constructor of Quat(x).
Gravity vector is zero in the first few frames, leading to errors in follow-up calculations expecting a normalized vector. Fixed by assigning a default gravity in case those cases.
Value fwd_mps converts global velocity into a velocity vector which is rotated to cars local coordinate system (in this example x-axis).
Then if key "ui_down" is pressed and the fwd_mps value is greater or equal to -1 (which seems to be very good spot and represents car still moving forward but nearly standing still) the car reverses (negative engine_force_value). If this condition isn't met (which means the car is moving forward) then the car brakes.
Tested and working on Godot 3.1 Beta 3.
Suggestions:
In this case, if you want something more realistic, the -engine_force_value can be much lower because no car reverses in same speed as it goes forward but for the sake of demo project I left it as it is.
Created for my own project with help of user wombatstampede from godotdevelopers.org/forum
A vertical FOV of 74 degrees is roughly equivalent to a 90 degree
horizontal FOV on a 4:3 display (~106.26 degrees on 16:9), which
is the typical default FOV used in PC games.
I think these issues are due to different calculations in the Bullet
Physics system. This fixes the vibration and roll, but additional
settings on the suspension also should be looked into.
